2022-11-28 00:23:31  [ Druid-ConnectionPool-Create-589837830:858183 ] - [ ERROR ]  create connection SQLException, url: jdbc:mysql://rm-bp11041gk26168oe9fo.mysql.rds.aliyuncs.com:3306/erp04?characterEncoding=utf-8, errorCode 0, state 08S01
2022-11-27 21:22:13  [ Druid-ConnectionPool-Create-100948971:9599395 ] - [ ERROR ]  create connection SQLException, url: jdbc:mysql://rm-bp11041gk26168oe9fo.mysql.rds.aliyuncs.com:3306/erp04?characterEncoding=utf-8, errorCode 0, state 08S01
2022-11-27 14:59:18  [ Druid-ConnectionPool-Create-401698877:7209563 ] - [ ERROR ]  create connection SQLException, url: jdbc:mysql://rm-bp11041gk26168oe9fo.mysql.rds.aliyuncs.com:3306/erp04?characterEncoding=utf-8, errorCode 0, state 08S01
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:829)
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:449)
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:242)
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1657)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1723)
	at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2838)
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at sun.reflect.GeneratedConstructorAccessor59.newInstance(Unknown Source)
	at sun.reflect.GeneratedConstructorAccessor55.newInstance(Unknown Source)
	at sun.reflect.GeneratedConstructorAccessor56.newInstance(Unknown Source)
	at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
	at com.mysql.cj.NativeSession.connect(NativeSession.java:120)
	at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:949)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:819)
	... 6 more
Caused by: java.net.UnknownHostException: rm-bp11041gk26168oe9fo.mysql.rds.aliyuncs.com
	at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
	at java.net.InetAddress.getAllByName(InetAddress.java:1192)
	at java.net.InetAddress.getAllByName(InetAddress.java:1126)
	at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:133)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
	... 9 more
